XDA-Developers has a dedicated Vmos Pro thread. Search for "Vmos Pro [Official] 32bit Support". Only download attachments posted by Recognized Developers (green username).
The 32-bit version is specifically designed for better performance on older hardware or for apps and games that are only compatible with 32-bit architecture. Vmos Pro 7.1 Root Rom Download 32 Bit
Once you have the ROM ZIP file (either via in-app download or manual transfer), follow these steps: XDA-Developers has a dedicated Vmos Pro thread